Dad's Birthday Crossword

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Across
  1. 2. Lion’s reply
  2. 4. Coffee vessel
  3. 5. Doorway
  4. 7. Grandstand Item
  5. 9. Spring bloom
  6. 15. Quick boost
  7. 16. Whitewater feature
  8. 17. Stock market plunge
  9. 18. Ink mishap
  10. 21. Katrina's kin
Down
  1. 1. Math equation, as an example
  2. 3. Sole
  3. 6. Grid component
  4. 8. What a rocket might do
  5. 10. Strip off
  6. 11. Guitarist gadget
  7. 12. Wrist artery
  8. 13. Lone Star State
  9. 14. Elevated
  10. 19. Most have gone digital now
  11. 20. Goes bad